San Antonio Weather: What to Expect and How to Prepare

San Antonio, Texas is known for its rich culture, historical landmarks, and—more recently—its unpredictable and often extreme weather patterns. Whether you're a local resident or planning a visit, understanding San Antonio weather can help you better prepare for what lies ahead.

A City of Sunshine and Heat

SAN ANTONIO WEATHER

San Antonio weather is characterized by long, hot summers and short, mild winters. The city sees over 220 sunny days a year, making it an attractive destination for sun-seekers. However, this sunshine can turn intense during summer months, with temperatures often climbing above 100°F (38°C).

May 2025 has proven to be one of the hottest starts to the season on record. With average high temperatures hitting 92°F—about 6.6°F above normal—residents are facing extreme heat warnings and serious risks like dehydration and heatstroke.

Rainfall and Storms

Despite the heat, San Antonio isn’t immune to sudden downpours and thunderstorms. May has seen very little rain so far, with only 0.19 inches recorded—well below average. This lack of precipitation has contributed to growing drought conditions in the region.

However, the weather can change quickly. A weak cold front is expected early next week, bringing chances of thunderstorms and slightly cooler temperatures. When it rains in San Antonio, it often pours—bringing the risk of flooding, hail, and damaging winds.

How to Stay Safe in San Antonio Weather

• Stay Hydrated: Always carry water with you, especially when outdoors.
• Plan Around the Heat: Try to schedule outdoor activities for early morning or late evening.
• Monitor Weather Updates: Thunderstorms can develop rapidly, so keep an eye on local forecasts.
• Dress Appropriately: Wear lightweight, light-colored clothing and a wide-brimmed hat.
• Use Sunscreen: With so much sunshine, protecting your skin is essential.

A Dynamic Forecast

While the immediate forecast includes more record-breaking heat, some relief may come from scattered storms. San Antonio weather is a mix of beauty and challenge—basking in sunlight one day and bracing for storms the next. As climate patterns continue to evolve, staying informed becomes even more critical.

Final Thoughts

Whether you’re new to the city or a lifelong resident, being prepared for San Antonio weather means respecting its extremes and planning accordingly. From record-breaking heatwaves to unexpected thunderstorms, it’s all part of life in this vibrant South Texas city.